Design of a meandering ramp located at the River “Große Tulln”

River morphodynamics and sediment transportSediment-structure interactio

Association between White Matter Hyperintensities, Cortical Thinning, and Clinical Outcomes in Mild Traumatic Brain Injury

Traumatic Brain Injury (TBI) is a global health challenge, with over 4.6 million confirmed cases annually in North America alone. Mild traumatic brain injuries (mTBIs) are the most common and make up approximately 81% of all TBI diagnoses worldwide [1]. Studies indicate that 10–15% of patients suffer from trauma induced symptoms (i.e. headache, loss of balance, cognitive impairments, fatigue, and mental health/affective disorders) as far as 1 year post injury [2]. Prediction and management of these post-traumatic sequalae is complicated by a lack of symptom associated neuroimaging findings. In spite of a “prominent distribution” of frontotemporal WMHs in pediatric subjects with mTBI, a 2016 study (N=72) by Bigler et al. found no association between unique changes in cortical thickness and WMHs after statistical correction for multiple comparisons. This retrospective study will investigate the associations between cortical thinning, white matter hyperintensities, and clinical outcomes in a large (N=147) and neurodevelopmentally diverse (18-40 years-old) group of subjects diagnosed with mTBI. Regional (Frontal Lobe, Temporal Lobe, Occipital Lobe, Parietal Lobe, and Cerebellum) volumetric and WMH data was obtained for all 147 patients. Assessment of image finding correlation showed that white matter hyperintensities did not consistently coincide with cortical thinning as defined by the NeuroQuant normative percentile values. Interval-censored analysis revealed statistically significant associations between positive WM status and longevity of post- concussive cognitive deficits (p\u3c0.024

The influence of a bed load bearing tributary on the water level underneath a run-of river plant

River morphodynamics and sediment transportSediment-structure interactio

Quadro comparativo dos métodos dos tableaux e das resoluções

Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Ciência da Computação.Expõe que ambos os métodos, tanto dos Tableaux como das Resoluções fazem parte daquilo que se chama prova automática de teoremas. O método da Resolução trabalha com prova por refutação: "se a negação de um teorema é falsa, então ele será verdadeiro." Este método é baseado em uma regra de inferência única, chamada regra de resolução, e utiliza intensivamente um algoritmo de casamento de padrões chamado algoritmo de unificação. Faz-se algumas comparações entre os dois métodos, pois, o algoritmo dos Tableaux não necessita de transformações para qualquer forma normal. Revela que a principal vantagem do método dos Tableaux, em relação ao método tradicional e conhecido de Resolução é fato deste evitar utilização de cláusulas nas suas formas. Forma de Medição no Processo de Alfabetização dos (as) Alunos (as) com Necessidades Educativas Especiai

Slope Stability Evaluation Due to Reservoir Draw-Down Using LEM and Stress-Based FEM along with Mohr–Coulomb Criteria

Rapid Draw-Down (RDD) in an earthfill dam has serious implications for dam safety regarding slope stability issues. The evaluation of reservoir draw-down impact on slope stability was carried out with the Limit Equilibrium Method (LEM) and stress-based Finite Element Method (FEM), using GeoStudio. The time-dependent Factor of Safety (FOS) and nonlinear behavior were evaluated considering 8 h of RDD. The resulting FOS values of 1.28 and 1.27 using LEM and stress-based FEM were classified as unsafe. The minimum allowable draw-down factor of safety value is 1.3, as per the guideline. The suggested two designs, with upstream horizontal filters and increased upstream dam permeability, provided an adequate FOS. However, the nonlinear analysis with coupled FEM has shown that the upstream slope is unstable in all three cases (i.e., as-built design, increased upstream dam shell permeability, and suggested application of horizontal filter layers) considering 8 h of RDD. Several gradual draw-down rates were also tested and it has been found that the FOS increases with decreased draw-down rates. FOS charts, pressure fluctuation, and flow measurements in the upstream dam shell have revealed that slope stability is highly influenced by pore water pressure and draw-down rate. The safe allowable draw-down rate of 20 h was identified, considering the as-built design of the dam

Flushing of the run-off river plant Bodendorf in Styria/Austria in respect of technical and ecological impacts

Proceedings of the Seventh International Conference on Hydroscience and Engineering, Philadelphia, PA, September 2006. http://hdl.handle.net/1860/732This paper deals with sedimentation and the resultant flushing of the run-of river power station Bodendorf at the river Mur in Austria. The mean annual sedimentation rate for this reservoir is approximately 35,000m³. To perform regular sediment flushings a monitoring programme was developed to optimize the flushing operation in line with economical and ecological requirements. Echo sounder surveys before and after the flushing, measurements of suspended sediment concentration, bed load transport and hydraulic gauging were undertaken (1) to determine a sediment balance of the flushing event, (2) to evaluate the effects of groins and an initial flushing channel and (3) finally to get data for numerical modeling concerning hydraulics and sediments. The ecological monitoring was performed by determining substrate conditions (freeze corer), groundfauna (invertebrates) and fish ecological aspects. These data should document the flushing of the reservoir Bodendorf and go towards improving the flushing management of the series of hydro power plants respectively. This work was performed for the Interreg IIIb Project ALPRESERV "Sustainable Sediment Management in Alpine Reservoirs" (www.alpreserv.org